couchdb-calculate-session-id

calculates valid CouchDB session IDs using username, salt, secret & timestamp

Usage no npm install needed!

<script type="module">
  import couchdbCalculateSessionId from 'https://cdn.skypack.dev/couchdb-calculate-session-id';
</script>

README

couchdb-calculate-session-id

calculates valid CouchDB session IDs using username, salt, secret & timestamp

Build Status Coverage Status Dependency Status devDependency Status

Example

var calculateSessionId = require('couchdb-calculate-session-id')

var sessionId = calculateSessionId(
  'pat',
  '24eb90e9e1343977b8323857287ffca4',
  '78875068a1979fb910d5d8f37d316aa4',
  1449689785
)

Arguments

Argument Type Description
username String name property of \_users doc
usersalt String salt property of \_users doc
serversecret String couch_httpd_auth.secret of CouchDB configuration
timestamp Number Number of seconds elapsed since 1 January 1970 00:00:00 UTC

How CouchDB does it using Erlang

make_cookie_hash(UserName, Secret, TimeStamp) ->
    SessionData = UserName ++ ":" ++ erlang:integer_to_list(TimeStamp, 16),
    Hash = crypto:sha_mac(Secret, SessionData),
    couch_util:encodeBase64Url(SessionData ++ ":" ++ ?b2l(Hash)).

Credits

All credits due to @christophwitzko, @indutny & @janl: https://gist.github.com/janl/4583f5eb4c0d8216cc5f

License

Apache-2.0